Which function has a range of y < 3?

Jacob signs up to work for 2 1/2 hours at the school carnival. if each work shift is 3/4 hour, how many shifts will jacob work? (i just want to double check : |, for anybody that responds! : )

Which one ? is the answer and how to find this answer

Prove that (x-2)is factor of p (x)=2x³-3x²-17x+30